Polycyclic aromatic hydrocarbons (PAHs) are key species in astrophysical environments in which vacuum ultraviolet (VUV) photons are present, such as star-forming regions. The interaction with these VUV photons governs the […]
astro-ph.GA]
Posted inAstrochemistry, Press Release
Multiple Nitrogen Reservoirs In A Protoplanetary Disk At The Epoch Of Comet And Giant Planet Formation
The isotopic ratio of nitrogen measured in primitive Solar System bodies shows a broad range of values, the origin of which remains unknown. One key question is whether these isotopic […]
Posted inAstrochemistry, Press Release
Chemistry On Rotating Grain Surfaces: Ro-thermal Hopping And Segregation Of Molecules In Ice Mantles
Grain surfaces play a central role in the formation and desorption of molecules in space. To form molecules on a grain surface, adsorbed species trapped in binding sites must be […]
Posted inAstrochemistry, Press Release
Chemical Evolution of HC3N in Dense Molecular Clouds
We investigated the chemical evolution of HC3N in six dense molecular clouds, using archival available data from the Herschel infrared Galactic Plane Survey (Hi-GAL) and the Millimeter Astronomy Legacy Team […]
Posted inAstrochemistry
Complex Organic Molecules In Accretion Shocks Around A Hot Core Precursor
Zeroth moment maps of some simple molecules, and selected transitions of COMs. All contours correspond to significant emission and start at 20% of the maximum value and increase by 15% […]
Posted inAstrochemistry, Press Release
A Three-phase Approach To Grain Surface Chemistry In Protoplanetary Disks: Gas, ice Surfaces And Ice Mantles Of Dust Grains
We study the effects of grain surface reactions on the chemistry of protoplanetary disks where gas, ice surface layers and icy mantles of dust grains are considered as three distinct […]